- All sections
- H - Electricity
- H01J - Electric discharge tubes or discharge lamps
- H01J 11/22 - Electrodes, e.g. special shape, material or configuration
Patent holdings for IPC class H01J 11/22
Total number of patents in this class: 135
10-year publication summary
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1
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2
|
1
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1
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1
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1
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2
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0
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1
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Corporation | 20786 |
52 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
21 |
| Hitachi, Ltd. | 16452 |
8 |
| Central Glass Company, Limited | 1244 |
6 |
| Sumitomo Chemical Company, Limited | 8808 |
5 |
| Nihon Yamamura Glass Co., Ltd. | 144 |
4 |
| Asahi Glass Company, Limited | 2985 |
3 |
| Nippon Electric Glass Co., Ltd. | 2299 |
3 |
| Tateho Chemical Industries Co., Ltd. | 64 |
3 |
| Applied Materials, Inc. | 16587 |
2 |
| Pioneer Corporation | 4843 |
2 |
| Hitachi Plasma Display Limited | 93 |
2 |
| Hitachi Plasma Patent Licensing Co., Ltd. | 12 |
2 |
| Wuxi Vision Peak Technology Co., Ltd | 24 |
2 |
| Samsung Electronics Co., Ltd. | 131630 |
1 |
| LG Electronics Inc. | 69257 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
1 |
| Fujitsu Limited | 19265 |
1 |
| Hitachi Chemical Company, Ltd. | 2455 |
1 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
1 |
| Other owners | 14 |